Door-bolt



(No Model.)

A. ANGUS. DOOR BOLT.

No. 517,512. Patented Apr. 3, 1894.

ALEXANDER ANGUS, OF HARTFORD, CONNECTICUT.

DOOR-BOLT.

SPECIFICATION forming part of Letters Patent No. 517,512, dated April 3,1894.

Application filed June 12, 1893. SerialNo. 477,369. (No model.)

To wZZ whom it'may concern.-

l 3e it known that I, ALEXANDER ANGUS, a c t zen of the United States ofAmerica, reslding at Hartford, in the county of Hartford and State ofConnecticut, have invented certam new and useful Improvements in Door- Bolts, of which the'following is a specificatlon, reference being hadtherein to the accompanying drawings. r

Myinvention relates to door bolts; and conslst in providing a novel formof actuating lever for throwing the bolt, and the means for locking thebolt in position when thrown in either direction. 0 In the accompanyingdrawings, Figure 1, 1s a longitudinal elevation of my improved boltshowing it as it will appear when attached to a door. Fig. 2, is a likeview showlng the reverse side of the bolt. Fig. 3, is a longitudinalsection taken just above the bolt and looking at the edge.

Referring to the several parts by letters of reference, A indicates thebolt plate which is provided with an angular projection A at one end, tofit on the edge of the door, and form a guide for the bolt. The plate isalso provided with a raised portion B, upon which the bolt rests, andagainst which it is held by means of a spring C which is secured tothebridge C. The rear end of the bolt is provided with a lug D, whichengages with one of the two openings (1 d formed in the plate A. Theraised part of the plateB is recessed at B on the opposite side from thebolt, and in this recess is pivoted a lever E, one end of which forms afinger catch to raise it out of the recess in the plate, and theopposite or pivoted end forms a cam for raising the bolt and withdrawingthe lug D from its engagement with the openings (1 d, whenever the leverE is thrown to the right or left as the case may be. The cammed part ofthe lever E is also notched or toothed and meshes with advances orcontracts thebolts, according to:

the way it is to be thrown, when the spring C engages the lug D with theopposite notch d, or d. It will thus be seen that a very simple, yetsafe and durable device is formed,

which can be made cheaply, and in which the throwing lever will alwaysbe flush with the door when not in use.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. The combination of the bolt and bolt plate with a throwing lever,having an oval formed toothed cam on its pivoted end, which disengagesand throws the bolt, in the manner described and for the purpose setforth.

2. The combination of the bolt plate, having the raised portion to restthe bolt and two openings to engage the'bolt and lock it, with a boltadapted to be so engaged and locked, and a spring for engaging it withthe openings, and a lever for disengaging and throwing the bolt,substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

ALEXANDER ANGUS.

